Glass ribbed bowl late 1st century B.C.-mid 1st century A.D. Roman Translucent pale blue green.Vertical rim with rounded top edge; plain, vertical band of irregular height around top of sides, then bulging outward before curving in sharply to concave bottom.On interior, two concentric grooves around outer part of bottom and small, broader circle at center; on exterior, eighty vertical ribs of slightly varying length and width, with tops ground off, arranged around bulging middle section of body.Intact; a few pinprick bubbles; dulling, slight pitting, and iridescence with large patches of creamy weathering.Rotary grinding marks on plain band around top of sides.. Glass ribbed bowl 245199